Medicaid is a form of medical insurance available for individuals who are in certain income brackets which qualifies them to receive this government funded insurance. Whether or not someone qualifies for Medicaid doesn't only depend upon their earnings however, and people shouldn't presume they don't qualify because they earn a reasonable income. For instance, individuals who have many dependents may qualify for Medicaid regardless of whether they make what can be considered a fair income. Medicaid can also cover the costs of rehab, if someone has been abusing alcohol or drugs and requires treatment. There are many drug and alcohol rehabilitation centers which accept Medicaid, but different states have distinct rules for what kinds of rehab are covered. Some states only cover outpatient rehab services for example while other states cover more intensive rehabilitation like a residential stay in long-term drug and alcohol treatment center. If somebody is involved in substance abuse and wants help, they are able to use their Medicaid health coverage to obtain this help. If they don't have Medicaid plus don't have enough cash or some other kind of health care insurance to cover treatment, they could check if they are eligible for a Medicaid and then sign up for a drug and alcohol rehab program that's approved within their state.